삼각법 예제

$\frac{\cot (x) - \tan (x)}{\cot (x) + \tan (x)}$

단계 1

$\frac{\cot (x) - \tan (x)}{\cot (x) + \tan (x)}$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$